Ok there's a mini game in the game.
On the main screen in SP where your strapped in the chair. Look at the floor and spam the space bar. You will break free. Walk behind the chair your in to the computer by the wall. Hit F to use the computer. There's alot of hidden shit in here if ya care to look. But just type in DOA and hit enter. The loading screen for Dead Ops Arcade will pop up. It's time based so let it load and it will start on its own. It's a pretty fun overhead view Zombie game. WASD for movement, mouse for spin, left click for shoot, G for nade, space for jump. I went 3 rounds just goofing around. lol Good times.
